libaf/equalizer.h

   1 /*
   2  * Copyright (C) 2002 Anders Johansson ajh@atri.curtin.edu.au
   3  *
   4  * This file is part of MPlayer.
   5  *
   6  * MPlayer is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * MPlayer is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #ifndef MPLAYER_EQUALIZER_H
  22 #define MPLAYER_EQUALIZER_H
  23
  24 /* Equalizer plugin header file defines struct used for setting or
  25    getting the gain of a specific channel and frequency */
  26
  27 typedef struct equalizer_s
  28 {
  29   float gain;           // Gain in dB  -15 - 15
  30   int   channel;        // Channel number 0 - 5
  31   int   band;           // Frequency band 0 - 9
  32 }equalizer_t;
  33
  34 /* The different frequency bands are:
  35 nr.     center frequency
  36 0       31.25 Hz
  37 1       62.50 Hz
  38 2       125.0 Hz
  39 3       250.0 Hz
  40 4       500.0 Hz
  41 5       1.000 kHz
  42 6       2.000 kHz
  43 7       4.000 kHz
  44 8       8.000 kHz
  45 9       16.00 kHz
  46 */
  47
  48 #endif /* MPLAYER_EQUALIZER_H */